30 



79. P. trivit tatum, Lea. 



Trypanostoma trivittatuin, Lea, Proc. Acad. Nat. Sci., p. 175, 1862. Jour. 

 Acad. Nat. Sci., v. pt.3, p. 282, t. 36, f. 102. Obs. ix., p. 104. 



80. P. t u r g i d u m , Lea. 



Melania turgida, Lea, Philos. Proc. ii. p. 82, Oct. 1841. Philos. Trans, ix., 

 p. 18. Wheatlej, Cat. Shells U. S., p. 27. Binney, Check List, No. 

 278. Brot. List, p. 33. 



81. P. minor. Lea. 



Trypanostoma minor. Lea, Proc. Acad. Nat. Sci., p. 174, 1862. Jour. Acad. 

 Nat. Sci., V. pt. 3, p. 278, t. 36, f. 95. Obs. ix., p. 100. 



82. P. pu mil urn. Lea. 



Trypanostoma pumilum, Lea, Proc. Acad. Nat. Sci., p. 174, 1862, Jour. 

 Acad. Nat. Sci., v. pt. 3, p. 279, t. 36, f. 96. Obs. ix., p. 101. 



83. P. Tennesse^nse, Lea. 



Trypanostoma Tennesseense, Lea, Proc. Acad. Nat. Sci., p. 175, 1862. Jour. 

 Acad. Nat. Sci. v. pt. 3, p. 281, t. 37, f. 100. Obs. ix., p. 103. 



84. P. t r c h u 1 u s , Lea. 



Trypanostoma trockuhis, Lea, Proc. Acad. Nat. Sci., p. 175, 1862. Jour. 

 Acad. Nat. Sci., v. pt. 3, p. 282, t. 37, f. 103. Obs. ix., p. 104. 



Genus ANGITREMA, Haldeman. 



Angitrema, Haldeman, Cover of No. 2, Monog. Limniades, Jan. 1841. 

 Potadoma, Swainson, sp. H. & A. Adams, Genera i., p. 299, 1854. 

 Glotella, Gray, Zool. Proc, pt. 15, p. 154, 1847. 

 lo, Lea, (sp.) H. & A. Adams, Genera, i. p. 299, 1854. Chenu, Man. Conchyl. 



i. p. 290, 1859. Reeve, Monog. lo, April, 1860. Brot, Syst. Cat. 



Mel., p. 29, 1862. 

 Lithasia, Haldeman, sp. H. & A. Adams, Genera of Recent MoUusca, i. p. 



308, 1854. 

 Anculotus, Say, (sp.). Jay, Cat. Shells., 4th Edit., p. 276, 1850. 

 Melania, (sp.) Authos, 



A. Body tvkorl with a coronal of tubercles. 



1. A. geniculata, Haldeman. 



Lithasia geniculata, Haldeman, suppl. to No. 1, Monog; of Limniades, Oct. 



1840. Binney, Check List, No. 299. 

 Anculotus genicnlatus, Haldeman, Jay, Cat. Shells, 4th Edit., p. 276. 



Hanley, Conch. Misc. t. 5, f. 41. Reeve, Monog. Anculotus 1. 1, f. 7. 

 Leptoxis geniculata, Haldeman, Brot, List, p. 24. 

 Lithasia gentcula, Lea, Wheatley, Cat. Shells U. S., p. 28. 



2. A. Salebrosa, Conrad. 



Melania salebrosa, Conrad, New Fresh Water Shells, p. 51, t. 4, f. 5, 1834. 

 Chenu, Reprint, p. 24, t. 4, f. 13. Dekay, Moll. N. Y., p. 100. Wheatley, 

 Cat. Shells U. S., p. 26. Jay, Cat. 4th Edit., p. 274. 



Anculotus salebrosus, Conrad, Reeve, Monog. Anc. 1. 1, f. 6, (bad figure.) 



Leptoxis salebrosa, Conrad, Brot. List, p. 25. 



Lithasia salebrosa, Conrad, Binney, Check List, No. 303. 



3. A. snbglobosa. Lea. 



Lithasia subglobosa, Lea, Proc. Acad. Nat. Sci., p. 55, Feb. 1861. Jour. 

 Acad. Nat. Sci., v. pt. 3, p. 261, t. 35, f. 70. Obs. ix., p. 83. 



4. A. Tuomeyi, Lea. 



Lithasia Tuomeyi, Lea, Proc. Acad. Nat. Sci., p. 55, Feb. 1861. Jour. 



Acad. Nat. Sci., v. pt. 3, t. 35, f. 68. Obs. ix., p. 81. 

 Anculotus Florentianus, Lea, Reeve, Monog. Anc. t. 1, f. 4. 



